AD7763

Data Sheet 24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface AD7763 FEATURES 120 dB dynamic range at 78 kHz output data rate 109 dB dynamic range at 625 kHz output data rate 112 dB SNR at 78 kHz output data rate 107 dB SNR at 625 kHz output data rate 625 kHz maximum fully filtered output word rate Programmable oversampling rate (32× to 256×) Flexible serial interface Fully differential modulator input On-chip differential amplifier for signal buffering Low-pass finite impulse response (FIR) filter with default or user-programmable coefficients Overrange alert bit Digital offset and gain correction registers Low power and power-down modes Synchronization of multiple devices via SYNC pin I2S interface mode APPLICATIONS Data acquisition systems Vibration analysis Instrumentation FUNCTIONAL BLOCK DIAGRAM VIN– VIN+ DIFF VREF+ REFGND BUF MCLK MCLKGND SYNC RESET SH2:0 ADR2:0 CDIV AD7763 CONTROL LOGIC I/O OFFSET AND GAIN REGISTERS MULTIBIT - MOD...